Fertilizer-drier.



Panama lJain. 22, |901.

No. sesol.

w. K. cAMPBELL.

FEI'mTILIZEB DRIER.

(Application filed May 8, 1900.)

' 2 sheets-sheet l.

(No Modal.)

{iit "Illlllllll YN: Nonms PETERS so, womumo.. wAsnlNaYoN. D. c.

2 Sheets-Sheet 2.

Patented 1an. 22, 190|.

W. K. CAMPBELL.

FERTILIZER DRIEB.

(Apphcatxon #led Hay 8 1900 TNE N ORRIS PETERS CU.. FNOTLITNO., WASHINGTON, D4 C.

N0. 66mm.

(No Model.)

WITPIEEEEE OZ@ @.z/M

UNTTnn STATES PATENT CFFICE.

WLLIAM K. CAMPBELL, CF CAMBRIDGE, MASSACHUSETTS, ASSIGNOR TO WILLIAM CAMPBELL & CO., OF SAME PLACE.

FERTlLIZER-DRIER.

SLPECXFECATON forming part of Letters Patent N o. 666,301, dated January 22, 1901.v

Application led May 8, 1900. Serial No. 15,950. (No model.)

To CtZ whom, t may concern:

Be it known that I, WILLIAM K. CAMP- BELL, a citizen of the United States, residing in Cambridge, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Fertilizer- Driers, of which the following is a specification.

This invention relates to fertilizer-driers in which the fertilizer is placed in a drier to which steam heat is applied by means of a space between the inner wall of the drier and a jacket, the fertilizer being stirred during the heating process by means of paddles or agitators extending radially from a shaft turned by a suitable driving mechanism.

The invention consists in certain novel constructions and arrangements of parts fully described below, and illustrated in the accompanying drawings, in which- Figure l is a side elevation of a fertilizerdrier embodying my invention, a portion being represented as broken out. Fig. 2 is an enlarged elevation of the door at the discharge-opening or manhole at the end. Fig. 3 is ahorizontal section taken on line 3, Fig. 2.

Similar letters of reference indicate corresponding parts.

A A represent the two end walls of a cylinder containing or constituting the dryingchamber. These end walls are connected by a cylindrical wall B, which is provided eX- ternally with a jacket C, having its edges C on opposite sides bolted to the inner jacket or Wall B. By this means a steam-space B is produced between the inner and outer jackets, such space extending from lines near the top of the cylinder around the sides and bottom thereof. Thus the portion of the drier in which the fertilizer lies-that is to say, the lower and central portions-is directly heated, while the upper portion has no heating-space, but is formed with a single thickness. The cylinder is provided with suitable supports d, to which it is bolted in the ordinary manner, and with a steam-inlet pipe o and outlet-pipe b.

The usual shaft D is mounted longitudinally in the drier and operated by gears D' D, driven by suitable pulleys communicating with the power. JThe shaft D is provided with radial agitating-arms E, terminating in paddles or shoes E.

The two manholes-viz., the one at the top and that at the end A-are provided with doors and mechanism for operating the same which are substantially alike and are illustrated in detail in Figs. 2 and 3. Referring to these figures, the end wall A has bolted to it, around the discharging-opening or inanhole F, a ring or plate H. Secured to said plate or to the end wall, or both, are two pairs of horizontally-extending ears K, located on opposite sides or at the opposite edges of the opening. L represents anv arm or yoke whose opposite ends lie between the ears K of each pair and are pivotally secured in such position by the bolts or pintles e e. The pintle or bolt e is long enough to extend through the ears N', extending from the cover or door N, said ears constituting, with the pintle e' and ears K', a hinge. The door N is formed up centrally into a thickened portion N", which is recessed, as shown at M, to receive the iianged end P of a screw P, said end being retained in the recess by means of a ring or overlapping flange S, secured in place by screws S. This screw P extends through a correspondingly-threaded central portion L of the arm or yoke L and is provided with a suitable rod or handle P". The inner face of the cover or door N' is grooved to receive suitable packing V. By means of this construction the door may be screwed perfectly tight and easily loosened and is enabled to swing from the opposite side and open in the opposite direction by removing the pintle c' from the ears K and inserting it in the ears K and placing the pintle c in the ears K. The door can then be reversed and swung from the left side instead of from the right. Moreover, if desired, the door can be swung from either side without. reversing it, inasmuch as by removing the pintle e the door can be swung from the pintle c', or by removing the pintle e the door can be swung from the pintle e. As above stated, the doors at the charging and discharging openings are the same, with the exception, of course, that the plates or rings H are formed to fit the curved and flat portions around the manholes.

Having thus fully described my invention,

IOO

the door N formed up centrally into the rel eessed thickened portion N and provided with the ears N', said door being reversible end for end, and the screw P extending through :L correspondingly-Lhreaded opening in the arm or yoke and with its inner end held looselyin en gagement with said recessed thickened portion, substantially ns and for the purpose set forth.

WILLIAM K. CAMPBELL.

Witnesses:

HENRY W. WILLIAMS, A. N. BONNEY. 

